(1) Unplasticized Polt (Vinyly Chloride) (PVC-U) Pipes for Water Supply ; (2) Unplasticized Polt (Vinyly Chloride) (PVC-U) Pipes for Low-Pressure Conveyance in Irrigation. PVC-U Pipe is divided into two kinds: (1) Unplasticized Polt (Vinyly Chloride) (PVC-U) Pipes for Water Supply: Diameter: Dn20、25、32、40、50、63、75、90、110、125、160、180、200、225、250、315、355、400、450、500mm Working Pressure: 0.63MPa、0.8 MPa、1.0 MPa、1.25 MPa、1.6 MPa、2.0 MP (2) Unplasticized Polt (Vinyly Chloride) (PVC-U) Pipes for Low-Pressure Conveyance in Irrigation: Diameter: Dn75、90、110、125、140、160、180、200、225、250、280、315mm Working Pressure: 0.2MPa、0.25 MPa、0.32MPa、0.4 MPa Customized is acceptable: YES